Import & Export a Deployments File

[peetzweg]

Allow user to export a "meta" file which includes all their deployed contracts with addresses, names, abis and networks. This file should also be able to be imported again as well.

The format should at best be a already existing common standard or guide in a direction of such. I.e. inkathon has capabilities of a deploy scripts which also track the deployed contracts in dedicated file afaik.